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Round|Natural|HRD

1.00ct F I1 Round Natural Diamond

EX • F/I1 • HRD 260000139153

Certificate HRD 260000139153

Diamond specifications and retailer prices

From $1,173 USD
As of October 26, 2026
Save $509 USD (30%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,945 USD at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by HRD 260000139153. Listed at 7 retailers as of October 25, 2026, with a 43% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
F
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 260000139153
Dimensions6.38 × 6.36 × 3.99 mm
L/W Ratio1.00
Top View
6.38 mm6.36 mm1.00 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000139153
Side View
Table 56.0%Crown 36.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: $1,173 USD|Low: $918 USD|High: $1,722 USD|Avg: $1,194 USD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 25, 2026
Retailer 3$920 USD
Retailer 4$1,042 USD
Retailer 5$1,115 USD
Retailer 1$1,173 USD
Retailer 2$1,682 USD

26 data points across 5 retailers

7 retailers$1,173 USD to $1,682 USD

Retailer 1
-
$920 USD
₹87,645 INR
Price last confirmed 7 days ago
Retailer 2
-
$1,042 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$1,173 USD
View
Retailer 4
-
$1,208 USD
View
Price last confirmed 23 days ago
Retailer 5
-
$1,208 USD
View
Price last confirmed 24 days ago
A
Retailer 6
-
$1,682 USD
€1,602 EUR
View
Most Expensive
NZ Jewellers
ec1c159a-4ef3-41f9-9efd-fd6cc2127e14 · Oct 9
$2,945 USD
View
Price last confirmed 23 days ago
6 more retailers have this diamond
Prices start from $1,173 USDSave up to $509 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Round
$1,173 USD